Question

32-3.9-0.9怎么简便计算？

Answer 1

32-3.9-0.9简便计算可以简单地拆分和添加数和孙字，进蚂棚稿行小数点后面闷孝单独计算。具体如下：

32-3.9-0.9

=32-（4-0.1）-（1-0.1）

=32-4+0.1-1+0.1

=32-4-1+0.2

=27+0.2

=27.2

Answer 2

解银激：32-3.9-0.9=32-（3.9+0.9）=32-4.8=27.2。这就是简便计算的答题闭搏宽过程，请你参考以下吧，多轿亮谢。

Answer 3

你好，这道题渣核简便计算是肢梁困：

32-（4-0.1）-（1-0.1）=32-4+0.1-1+0.1=32-4-1+0.1+0.1=27.2。

举例历念

Answer 4

32-3.9-0.9
= 32-(3.9+0.9)
= 32-4.8
= 32- 4 - 0.8
= 28 - 0.8
= 27.2

Answer 5

简算游卜:
32-3.9-0.9
=32-(4-0.1)-0.9
=32-4+0.1-0.9
=28-(0.9-0.1)
=28-0.8
=27.2
运用了困磨裤加法结合律汪简